-er -ic c-- ccc cce cci ccm cco ccr ccz ce- cec cee cei cem ceo cer cez ci- cic cie cii cim cio cir cmc cme cmi cmm cmo cmr co- coc coe coi com coo cor coz crc cre cri crm cro crr crz cz- czc cze czm czo ec- ecc ece eci ecm eco ecr eec eee eem eeo eer eic eie eii eim eio eir em- emc eme emi emm emo emr eo- eoc eoe eoi eom eoo eor erc ere eri erm ero err erz eze ezo ezr ezz icc ice ici icm ico icr icz ie- iec iee iei iem ier iic iie iii iim iio iir im- imc ime imi imm imo imz io- ioc ioe ioi iom ioo ior ir- irc ire iri irm iro irr ize izi izm izo izz m-o m-r mc- mcc mce mci mcm mco mcr mcz mec mee mei mem meo mer mez mi- mic mie mii mim mio mir miz mmc mme mmi mmm mmo mmr mmz moc moe moi mom moo mor moz mrc mre mri mrm mro mrr mrz mzi mzm o-i oc- occ oci ocm oco ocr ocz oec oee oei oem oeo oer oic oie oii oim oio oir oiz om- omc ome omi omm omo omr omz oo- ooc ooi oom ooo oor or- orc ore ori orm oro orr orz oze ozm ozo ozz rcc rce rci rcm rco rcr re- rec ree rei rem reo rer rez ric rie rii rim rio rir riz rmc rme rmi rmm rmo rmr roc roe roi rom roo ror roz rrc rri rrm rrr rze rzm rzo zce zco zec zee zem zeo zer zez zie zim zio zir ziz zmc zmm zo- zoc zoe zoi zom zoo zor zro zzr zzz